Sheet-packing apparatus



June 24, 1930. EVANS ET AL 1,767,442

SHEET PACKING APPARATUS Filed May 22. 1928 2 Sheets-Sheet l Iigfil.

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June 24, 1930. EVANS m- AL 5mm PACKING APPARATUS Filed May 22. 1928 2 Sheets-Sheet 2 a W w .y

e 5 J W. V M E W Mm Ad Patented June 24, 1930 UNITED STATES PATENT OFFICE ABGHIBALD D. EVANS AND HARRY R. GRAVENS'IRETER, NEW CASTLE, PENNSYD vnna, ASSIGNORS 'ro mmucan non or new mass? SHEET AND TIN PLATE COMPANY, A CORPORA- SHEET-PACKING arrana'rus Y Application and m :2, 1928, Serial No. 279,835.

This invention relates to slieet handligg apparatus and, while not limited thereto, relates more' specifically to a cold' jinillf packer for piling. cold rolled fs'h ee 's ;p1; plates, and has for one of its objec"1th provision of an improved apparatus-jotthis type which will deliver the sheets. with. 3 L minimum drop onto the pile. i

Another object is to provide an apparatus which will be automatically raised: asf the' pile is formed so as to permit'i thefoifiiiiing of standard hei ht piles.

A further ob ect is -to provide"mil-appa-e ratus having the novel design, construction a and combination of parts hereinafter .de-.

drawings.

In the drawings: i

Figure l is a side elevation, of a sheet packing apparatus constructed in" accordance with this invention.

Figure 2 is a plan view thereof.

Figure 3 is a fragmentary sectional detail taken on the line III-III of Figure 1,. showing the details of the'control switch.

Referring more particularly to the drawings, the numeral 2 designates a vertically disposed hydraulic cylinder which is mounted in a pit 3 and supports a horizontal frame 4.

Suitable conveyer head pulleys 5 are secured on a shaft 6 journaled in the frame 4 and suitable conveyer tail pulleys 7 are secured on a shaft 8 journaled in supports 9 adjacent the discharge side of a cold mill conveyer head pulley-shaft (3.

A piling mechanism is supported on the frame 4 forward of and adapted to receive the sheets from the conveyer and comprises feed-out rollers 19 and 20 journaled in the frame 4, guide-members 21 and 22, and a stop-plate 23.

disks 24 thereon of varyin The lower feed-out roller 19 is concave in 20 consists of a shaft having three spaced follow the contour of the rol er 19.

The lower feed-out roller 19' has a sprocket 25 on its shaft which is connected by a chain 26 to a sprocket 27 on the head pulley-shaft 6.

The hydraulic cylinder 2 is adapted to receive fluid from a standard oil gear hydraulic pump 28.which is driven by an electric motor 29. The motor 29 is connected to the pump 28 by a drive-chain 30 trained V over sprockets 31 and A pipe line 33 scribed and illustrated in the-accompanying extends from the pump 28 to the cylinder 2 through which the fluid is' forced.

The niotor 29 is adapted to be controlled by a switch 15, mounted on the guide-mem- 39 which projects through an opening 40' in the guide 21 into the path of the sheets as they move downwardly between the guides 21 and 22. The upper end of the lever 37 is provided with a counter-weight rod 41 on which a plurality of weight members 42 are removably secured by a nut 43.

The sheets delivered through the piling mechanism are shown forming a pile on an annealing box bottom 45 mounted on a truck 46.

diameters to The lower end of In operation, as the sheets emerge frombetween the rollers, thereby causing said plates to be discharged on a'substantiallyv and 36 to engage, thereby completing the circuit to the motor 29 which will operate the pump 28 and force more fluid into the cylinder 2, so as to cause said cylinder and the frame 4 and its associated mechanism to rise. The switch B will remain in circuit closing position only momentarily until the sheets have moved past the lever'37, when the circuit will be automatically broken and the motor 29 and pump 28 will stop. Thus the cylinder 2 and the mechamsm supported thereby will be elevated in a step-by-step manner.

After the cylinder has been elevated as far as necessary to complete a pile of sheets, and it is desired to lower the mechanism in readiness to form a new pile, a suitable by- Bass valve, which is a part of the standard ydraulic oil gear pump 28, is opened to permit the fluid to return from the cylinder 2 to a reservoir which forms a part of said pump unit.

One of he mam advantages of this apparatus is that the sheets may be delivered at'approximately the same distance from the pile at all heights of the piles and, therefore,

the fall or delivery of the sheets may be readily controlled.

While we have shown and described one specific embodiment of our invention, it will be understood that we do not wish to be limited thereto since various modifications may be made without departing from the scope thereof as defined in the appended claims as, for instance, the mechanism for elevating the frame may be overhead instead of in a pit, other sources of power ma be used, and various other equivalents su stituted for different parts of the apparatus.

We claim-- 1. A cold mill packer comprising a vertically movable support, a sheet feeding con-' veyor having its delivery end carried on said support, a piling mechanism carried b said support, said piling mechanism inclu "ing a series of stationary guides for guiding the I sheets onto a pile and cooperating concave and convex rolls adapted to feedthe sheets horizontally between said guides, means for moving sa1d support vertically, and means operable by the sheets as they pass downwill engage the cam portion sheets onto' a wardlybetween said guides for automatically controlling said means for'movin'g said support.

2. A cold mill packer comprisindg1 a vertically movable support, a sheet fee 'ng conveyor having its de 've'ry end carried on said support, a plling mechanism carried b said support, sa1d pi ing mechanism in'clu ing a series of stationary guides for pile and cooperating concave and convex ro ls adapted to feed the sheets horizontally between said 'des, electr'ically operated means for movmg said support vertically, and a switch operable by the sheets'as they ass between said guides for controlling sai means for moving said suport.

.3. Acold mill packer comprisin tically movable support, a sheet fee ing conveyor having its delivery end carried on said support, a piling mechanism carried by said support, said piling mechanism including a series of guides for guiding the sheets onto a guiding the I a VET-H pile and cooperating concave and convex rolls adapted to feed the sheets horizontally between said guides, electrically operated means for moving said support vertically, and a switch operable by the sheets as they ass be tween sa1d guides for controlling said means 'for moving said support, said switch includ ing an operating lever pivotally mounted on one of said guides and having one end extending into the path of travel of the sheets as they pass between said guides, a contact carried by the other end of said lever, and a counter-weight carried by the contact end of said lever.

4. A cold mill packer comprising a fluid pressure cylinder, a supporting frame mounted 'onand adapted to be moved vertically by saidcylinder, a sheet feeding conveyor having its delivery end carried on said supportin'gi frame, a piling mechanism mounted on said frame, said piling mechanism including a series of guides for guiding the sheets onto a pile, an electrically operated pump for providing fluid under pressure to said cylinder to elevate said c linder and said frame, and a switch operab e by the sheets as they pass through said piling mechanism for controlling theoperation of said pump, said switch including an operating lever pivotally mounted on one of said guides and having one end extending into the path of travel of the sheets as the pass between said guides, a contact carried y the other end of said lever, and a counter-weight carried by the contact end of said lever.

In testimony whereof, we have hereunto set our hands.

ARCHIBALD D. EVANS. HARRY R. GRAVENSTRETER. 

